Causonis eurynema

{{Short description|Species of grapevine}}

{{Use dmy dates|date=July 2019}}

{{italic title}}

{{Speciesbox

| name = Soft water vine

| image = Vine - Victoria Park Nature Reserve.JPG

| image_caption = Victoria Park Nature Reserve, Australia

| genus = Causonis

| species = eurynema

| authority = B.L.Burtt

| synonyms = * Cayratia eurynema

}}

Causonis eurynema, commonly known as the soft water vine, is a plant in the grape family, found in Australia.[https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77211309-1 POWO]: Causonis eurynema (B.L.Burtt) Jackes. A large woody climber usually seen in tropical forest.Rainforest Climbing Plants - Williams & Harden, 2000 {{ISBN|0-85834-293-6}} page 13 This plant was first collected at Comboyne in May, 1935. It was named by the eminent English botanist, Bill Burtt.